Tonight on All-N. Our country itself would be under threat and it was very nearly under threat.

The evolving rationale for war with Iran.

Did you tell Obama there was an imminent threat?

As the president measures the White House drapes?

I picked those drapes in my first term.

I always like gold.

Tonight, Donald Trump's cataclysmic decision to go to war

and the threat of a wider conflict.

Is there a concern of this spiraling into a longer war and then one for the chairman when you're done?

Did you not hear my remarks?

Plus, the reality on the ground in Iran, the growing American casualties, and why the American people are already against this war.

But all in starts right now.

Good evening from New York. I'm Chris Hayes.

Donald Trump's war with Iran is illegal, reckless, and wrong.

We are only on day three, and it is already an indelible moral stain on this country.

Today, the war threatened to explode into a larger regional

conflict, something that many have warmed, could happen. Air raid sirens were heard in Jordan,

while Qatar's government said it shot down two bombers coming from Iran. That is, in addition,

to renewed fighting between Israel and Hezbollah fighters in Lebanon. And just this evening,

within the last hour, there's

been news of a drone attack on the U.S. Embassy in Riyadh, Saudi Arabia. It caught on fire.

At this point, there are no casualties. Today, three U.S. fighter jets were actually shot down

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